This type electric switch valve is hydraulically operated,diaphragm actuated control valve,which opens in response to a remote pressure rise command and shuts in the absence of that command.
This type electric switch valve is hydraulically operated,diaphragm actuated control valve,which opens in response to a remote pressure rise command and shuts in the absence of that command.
TYPICAL APPLICATIONS Computerized Irrigation Systems; Remote/Elevated Systems; Turf Irrigation or Buried Pipeline Irrigation; Greenhouse Irrigation; Low Supplied Pressure Irrigation Systems; Energy Saving Irrigation Systems; FEATURES 1.Hydraulically Controlled,Normally Closed Valve
* Line pressure driven *Closes upon control failure *Amplifies and relays weak remote command 2.Engineered Plastic Valve with Industrial Garde Design *Highly durable,chemical and cavitation resistant *No internal bolts and nuts 3.High Flow “Y” Valve Body with “Look Through” Design *Ultra-high flow capacity,Low pressure loss 4.Unitized Flexible Super Travel(FST) Diaphragm and Guided Plug *Smooth closing *Requires low opening and actuation pressure *Prevents diaphragm erosion and distortion 5.Simple In-Line Inspection and Service
HOW IT WORKS Line pressure [1] is applied to the Control Chamber [2] through the held open,3-Way Hydraulic Relay Valve (3W-HRV) .This creates superior closing force that moves the Diaphragm Assembly [4] to a closed position.Upon pressure rise command,the 3W-HRV switches,releasing pressure from the control chamber and thereby opening the Main Valve.The 3W-HRV also features local manual opening and closing.
